Sometimes it is easy to spot bias and agenda, for example in a political campaign speech, other times it is very difficult to determine. Bias can appear in all types of publications, even in academic journal articles. So, as an academic writer you must always be aware of how an article is written before using it in a research project and how you yourself are writing to ensure you are not advancing an agenda unknowingly.
Always look at materials with a degree of skepticism and evaluate the entirety of an item's contents before using it as source material. Ask yourself these questions:
Remember, the presence of a cited resource is not a guarantee that the references are credible, or that the author used the resource in a manner that is complete, accurate, and in context.